diff --git a/package-lock.json b/package-lock.json
index c2abf7e..a454e31 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1465,7 +1465,7 @@
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       "dev": true,
       "requires": {
-        "safe-buffer": "5.1.2"
+        "safe-buffer": "^5.0.1"
       }
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     "bcrypt-pbkdf": {
@@ -1620,7 +1620,7 @@
       "integrity": "sha1-vhYedsNU9veIrkBx9j806MTwpCo=",
       "dev": true,
       "requires": {
-        "base-x": "3.0.4"
+        "base-x": "^3.0.2"
       }
     },
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@@ -1868,9 +1868,9 @@
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       "dev": true,
       "requires": {
-        "multibase": "0.4.0",
-        "multicodec": "0.2.6",
-        "multihashes": "0.4.13"
+        "multibase": "~0.4.0",
+        "multicodec": "~0.2.6",
+        "multihashes": "~0.4.13"
       }
     },
     "circular-json": {
@@ -2393,14 +2393,14 @@
       }
     },
     "dfinity-radix-tree": {
-      "version": "0.2.5",
-      "resolved": "https://registry.npmjs.org/dfinity-radix-tree/-/dfinity-radix-tree-0.2.5.tgz",
-      "integrity": "sha512-fdmzrRHra/RZeT7/7p/xOKRY2vs5CDMgD/La/9QCnEWfjL0tyFTEoqnt6d+kEfGYykaIiLQhzDi9KEi0o1TZug==",
+      "version": "0.2.7",
+      "resolved": "https://registry.npmjs.org/dfinity-radix-tree/-/dfinity-radix-tree-0.2.7.tgz",
+      "integrity": "sha512-QbArlNSUSncqa4grDCQQ+cMy2odyXEoxoYd/5dosAics39ArN5dckSFqm4xTEhGeQragjdytial23SJPqImKsg==",
       "dev": true,
       "requires": {
-        "borc": "2.0.3",
-        "ipld-graph-builder": "1.3.8",
-        "node-fetch": "2.1.2"
+        "borc": "^2.0.3",
+        "ipld-graph-builder": "^1.3.8",
+        "node-fetch": "^2.1.2"
       }
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     "diff": {
@@ -3375,12 +3375,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "1.0.0",
             "concat-map": "0.0.1"
@@ -3395,17 +3397,20 @@
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           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3522,7 +3527,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -3534,6 +3540,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -3548,6 +3555,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.11"
           }
@@ -3555,12 +3563,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.1.1",
             "yallist": "3.0.2"
@@ -3579,6 +3589,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3659,7 +3670,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3671,6 +3683,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -3792,6 +3805,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -4449,10 +4463,10 @@
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       "dev": true,
       "requires": {
-        "assert": "1.4.1",
-        "cids": "0.5.3",
-        "lockmap": "0.1.0",
-        "multihashes": "0.4.13"
+        "assert": "^1.4.1",
+        "cids": "^0.5.3",
+        "lockmap": "^0.1.0",
+        "multihashes": "^0.4.12"
       }
     },
     "is-absolute": {
@@ -5675,22 +5689,22 @@
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     "multicodec": {
-      "version": "0.2.6",
-      "resolved": "https://registry.npmjs.org/multicodec/-/multicodec-0.2.6.tgz",
-      "integrity": "sha512-VGyRUDkxdJzWnj9x3C49MzI3+TtKKDYNfIBOaWBCNuPk6CE5CwwkL15gJtsLDfLay0fL4xTh4Af3kBbJSxSppw==",
+      "version": "0.2.7",
+      "resolved": "https://registry.npmjs.org/multicodec/-/multicodec-0.2.7.tgz",
+      "integrity": "sha512-96xc9zs7bsclMW0Po9ERnRFqcsWHY8OZ8JW/I8DeHG58YYJZy3cBGI00Ze7hz9Ix56DNHMTSxEj9cgoZByruMg==",
       "dev": true,
       "requires": {
-        "varint": "5.0.0"
+        "varint": "^5.0.0"
       }
     },
     "multihashes": {
-      "version": "0.4.13",
-      "resolved": "https://registry.npmjs.org/multihashes/-/multihashes-0.4.13.tgz",
-      "integrity": "sha512-HwJGEKPCpLlNlgGQA56CYh/Wsqa+c4JAq8+mheIgw7OK5T4QvNJqgp6TH8gZ4q4l1aiWeNat/H/MrFXmTuoFfQ==",
+      "version": "0.4.14",
+      "resolved": "https://registry.npmjs.org/multihashes/-/multihashes-0.4.14.tgz",
+      "integrity": "sha512-V/g/EIN6nALXfS/xHUAgtfPP3mn3sPIF/i9beuGKf25QXS2QZYCpeVJbDPEannkz32B2fihzCe2D/KMrbcmefg==",
       "dev": true,
       "requires": {
-        "bs58": "4.0.1",
-        "varint": "5.0.0"
+        "bs58": "^4.0.1",
+        "varint": "^5.0.0"
       }
     },
     "mute-stream": {
@@ -5741,9 +5755,9 @@
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     "node-fetch": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.1.2.tgz",
-      "integrity": "sha1-q4hOjn5X44qUR1POxwb3iNF2i7U=",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.2.0.tgz",
+      "integrity": "sha512-OayFWziIxiHY8bCUyLX6sTpDH8Jsbp4FfYd1j1f7vZyfgkcOnAyM4oQR16f8a0s7Gl/viMGRey8eScYk4V4EZA==",
       "dev": true
     },
     "noop-logger": {
@@ -5859,6 +5873,7 @@
           "version": "0.1.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "3.2.2",
             "longest": "1.0.1",
@@ -6801,7 +6816,8 @@
         "longest": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "lru-cache": {
           "version": "4.1.3",